HomeHVAC > Hoses and PipesDayco 87746 HVAC Heater Hose
Part #: 87746

Dayco 87746 HVAC Heater Hose

Small I.D. Heater Hose, Oil Cooler To Pipe
⚙️ 27 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$10.90Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Small I.D. Heater Hose, Oil Cooler To Pipe
🚗Fitment: Chrysler, Dodge, Honda, Acura, and Ford, Town & Country, Grand Caravan, Pilot, MDX, Odyssey, and Mustang
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Dayco Small I.D. Heater Hose 87746

The Dayco Small I.D. Heater Hose 87746 is designed for reliable HVAC system performance in select Acura, Chrysler, Dodge, Ford, and Honda vehicles. This hose ensures proper coolant flow within the heating system, maintaining cabin comfort and engine efficiency.

  • Constructed from durable EPDM material for heat and chemical resistance
  • Black color for standard OEM appearance
  • Consistent 5/8 inch inside diameter on both ends for secure fitment
  • Single inside diameter hose type for straightforward installation
  • Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
  • Trunk height dimension of 6 inches for precise fit

Detailed Product Description

The Dayco Small I.D. Heater Hose 87746 is engineered from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. This hose features a uniform 5/8 inch inside diameter on both ends, ensuring compatibility with HVAC heater connections in vehicles such as the Acura MDX and Honda Pilot. The hose does not include a heat shield or protective sleeve, making it suitable for applications where additional insulation is not required. It complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive heating and cooling systems. The 6-inch trunk height dimension supports proper routing and fit within the engine bay.

About the Small I.D. Heater Hose Product Line

The Small I.D. Heater Hose line by Dayco focuses on providing precise diameter hoses tailored for HVAC systems requiring smaller inside diameters. This product line emphasizes material quality and specification compliance to meet the demands of various vehicle makes and models. The 87746 part is a representative component within this line, offering a balance of durability and fitment accuracy for compatible vehicles.

Common Applications and Problem Solving

  • Replacement of worn or cracked heater hoses in Acura MDX and Honda Pilot models
  • Resolving coolant leaks that affect heating system performance in Chrysler Town & Country and Dodge Grand Caravan
  • Addressing hose degradation due to heat exposure in Ford Mustang and Honda Odyssey
  • Ensuring proper coolant flow to maintain consistent cabin heating
  • Preventing overheating issues related to faulty heater hose connections

Installation Notes and Tips

When installing the Dayco Small I.D. Heater Hose 87746, ensure the hose is routed without kinks or sharp bends to maintain coolant flow. Verify that the 5/8 inch inside diameter matches the vehicle’s heater core and engine fittings. Use appropriate clamps to secure the hose ends firmly. Since this hose does not include a heat shield or protective sleeve, consider the surrounding engine bay environment to avoid premature wear.

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 87746 to meet stringent SAE specifications, ensuring reliable performance in HVAC systems. While specific warranty details are not provided, Dayco products typically adhere to industry standards for durability and material quality. Confirm warranty coverage with the point of purchase or manufacturer documentation.

BrandDayco
Part Number87746
PositionSmall I.D. Heater Hose, Oil Cooler To Pipe
ColorBlack
End 1 Inside Diameter5/8
End 2 Inside Diameter5/8
Hose TypeSingle I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R3 Class D-1, SAE J1684 Type EC
Trunk Height6

This part fits 27 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009ChryslerTown & Country3.8LV6Oil Cooler To Pipew/Oil Cooler; Small I.D. Heater Hose
2009DodgeGrand Caravan3.8LV6Oil Cooler To Pipew/Oil Cooler; Small I.D. Heater Hose
2008ChryslerTown & Country3.8LV6Oil Cooler To Pipew/Oil Cooler; Small I.D. Heater Hose
2008DodgeGrand Caravan3.8LV6Oil Cooler To Pipew/Oil Cooler; Small I.D. Heater Hose
2008HondaPilotValve To EngineSmall I.D. Heater Hose
2007HondaPilotValve To EngineSmall I.D. Heater Hose
2006AcuraMDXHeater To ValveSmall I.D. Heater Hose
2006HondaPilotValve To EngineSmall I.D. Heater Hose
2005AcuraMDXHeater To ValveSmall I.D. Heater Hose
2004AcuraMDXHeater To ValveSmall I.D. Heater Hose
2004HondaOdysseyPipe To ValveSmall I.D. Heater Hose
2004HondaPilotPipe To ValveSmall I.D. Heater Hose
2003AcuraMDXHeater To ValveSmall I.D. Heater Hose
2003HondaOdysseyPipe To ValveSmall I.D. Heater Hose
2003HondaPilotPipe To ValveSmall I.D. Heater Hose
2002AcuraMDXPipe To ValveSmall I.D. Heater Hose
2002HondaOdysseyPipe To ValveSmall I.D. Heater Hose
2001AcuraMDXPipe To ValveSmall I.D. Heater Hose
2001HondaOdysseyPipe To ValveSmall I.D. Heater Hose
2000FordMustang3.8LV6Heater OutletSmall I.D. Heater Hose
2000HondaOdyssey3.5LV6Pipe To ValveSmall I.D. Heater Hose
1999FordMustang3.8LV6Heater OutletSmall I.D. Heater Hose
1999HondaOdysseyPipe To ValveSmall I.D. Heater Hose
1998FordMustang3.8LV6Heater OutletSmall I.D. Heater Hose
1997FordMustang3.8LV6Heater OutletSmall I.D. Heater Hose
1996FordMustang3.8LV6Heater OutletHeater End; Small I.D. Heater Hose
1995FordMustang3.8LV6Heater OutletHeater End; Small I.D. Heater Hose

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

14158S14266S14565S

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.